Function investigation of stone mastic asphalt (SMA) mixture partly containing basic oxygen furnace (BOF) slag

被引：16

作者：

Chen, Zongwu ^{[1
]}

Wu, Shaopeng ^{[1
]}

Pang, Ling ^{[1
]}

Xie, Jun ^{[1
]}

机构：

[1] Wuhan Univ Technol, State Key Lab Silicate Mat Architectures, Wuhan 430070, Peoples R China

来源：

JOURNAL OF APPLIED BIOMATERIALS & FUNCTIONAL MATERIALS | 2016年 / 14卷

基金：

对外科技合作项目（国际科技项目）;

关键词：

BOF slag; Deformation resistance; Size gradation; Skid resistance; SMA mixture; GAS DESULFURIZATION RESIDUES; EPOXY MODIFIED BITUMEN; AGGREGATE; PAVEMENT; DESIGN;

D O I：

10.5301/jabfm.5000307

中图分类号：

Q6 [生物物理学];

学科分类号：

071011 ;

摘要：

Aims: In this paper, the effect of the size gradations of basic oxygen furnace (BOF) slag on the functional performances of stone mastic asphalt (SMA) mixture including skid and deformation resistances was investigated. Methods: The industrially produced BOF slag coarse aggregates (BSCA) with size gradations of 4.75-9.5 mm and 9.5-16 mm were used. SMA mixtures were designed according to Marshall procedure. British pendulum number (BPN), indicating the skid resistance of asphalt mixture, was measured by a British pendulum skid resistance device. Flow number (F-N) and Marshall quotient (MQ), reflecting the deformation resistance of asphalt mixture, were determined, respectively, based on the results of dynamic creep test and Marshall test (stability and flow value). Results: showed that BSCA with a size gradation of 9.5-16 mm performed better in improving the skid and deformation resistance of SMA mixture than BSCA with a size gradation of 4.75-9.5 mm. Furthermore, BSCA with combined size gradations, namely, 4.75-16 mm, worked the best. Conclusions: These conclusions would benefit the future extensive utilization of BSCA in asphalt pavement.

引用

页码：S68 / S72

页数：5

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